exclude :test_Float, "needs investigation"
exclude :test_cmp_int, "needs investigation"
exclude :test_floor_ceil_round_truncate, "needs investigation"
exclude :test_invalid_str, "needs investigation"
exclude :test_pow, "needs investigation"
exclude :test_step, "needs investigation"
exclude :test_step_excl, "needs investigation"
exclude :test_strtod, "needs investigation"
exclude :test_to_s, "needs investigation"
exclude :test_round_with_precision, "needs investigation"